/Engine/Source/Editor/EditorWidgets/Public/SAssetSearchBox.h
SWidgetimplementation.
virtual [FReply](API\Runtime\SlateCore\Input\FReply) OnPreviewKeyDown ( const [FGeometry](API\Runtime\SlateCore\Layout\FGeometry) & MyGeometry, const [FKeyEvent](API\Runtime\SlateCore\Input\FKeyEvent) & InKeyEvent )